Kazan state Federal University E-Archive :: Browsing by Author "Klimchitskaya G."

Casimir free energy of dielectric films: Classical limit, low-temperature behavior and control

Klimchitskaya G.; Mostepanenko V. (2017)

© 2017 IOP Publishing Ltd. The Casimir free energy of dielectric films, both free-standing in vacuum and deposited on metallic or dielectric plates, is investigated. It is shown that the values of the free energy depend ...

Casimir pressure between metallic plates out of thermal equilibrium: Proposed test for the relaxation properties of free electrons

Klimchitskaya G.; Mostepanenko V.; Sedmik R. (2019)

© 2019 American Physical Society. ©2019 American Physical Society. We propose a test on the role of relaxation properties of conduction electrons in the Casimir pressure between two parallel metal-coated plates kept at ...

Conductivity of graphene in the framework of Dirac model: Interplay between nonzero mass gap and chemical potential

Klimchitskaya G.; Mostepanenko V.; Petrov V. (2017)

© 2017 American Physical Society. The complete theory of electrical conductivity of graphene at arbitrary temperature is developed with taking into account mass-gap parameter and chemical potential. Both the in-plane and ...

Constraints on axionlike particles and non-Newtonian gravity from measuring the difference of Casimir forces

Klimchitskaya G.; Mostepanenko V. (2017)

© 2017 American Physical Society. We derive constraints on the coupling constants of axionlike particles to nucleons and on the Yukawa-type corrections to Newton's gravitational law from the results of recent experiment ...

Effect of agglomeration of magnetic nanoparticles on the Casimir pressure through a ferrofluid

Klimchitskaya G.; Mostepanenko V.; Velichko E. (2019)

© 2019 American Physical Society. The impact of agglomeration of magnetic nanoparticles on the Casimir pressure is investigated in the configuration of two material plates and a layer of ferrofluid confined between them. ...

Examining the Casimir puzzle with an upgraded AFM-based technique and advanced surface cleaning

Liu M.; Xu J.; Klimchitskaya G.; Mostepanenko V.; Mohideen U. (2019)

© 2019 American Physical Society. We performed measurements of the gradient of the Casimir force between Au-coated surfaces of a sphere and a plate by means of a significantly upgraded dynamic atomic force microscope ...

Fluctuation-induced free energy of thin peptide films

Baranov M.; Klimchitskaya G.; Mostepanenko V.; Velichko E. (2019)

© 2019 American Physical Society. We apply the Lifshitz theory of dispersion forces to find a contribution to the free energy of peptide films that is caused by the zero-point and thermal fluctuations of the electromagnetic ...

Graphene may help to solve the Casimir conundrum in indium tin oxide systems

Klimchitskaya G.; Mostepanenko V. (2018)

© 2018 American Physical Society. We reconsider the long-explored problem that the magnitude of the measured Casimir force between an Au sphere and an indium tin oxide (ITO) film decreases significantly after the UV treatment ...

How to observe the giant thermal effect in the Casimir force for graphene systems

Bimonte G.; Klimchitskaya G.; Mostepanenko V. (2017)

© 2017 American Physical Society. A differential measurement scheme is proposed which allows for clear observation of the giant thermal effect for the Casimir force, which was recently predicted to occur in graphene systems ...

Impact of chemical potential on the reflectance of graphene in the infrared and microwave domains

Klimchitskaya G.; Mostepanenko V.; Petrov V. (2018)

© 2018 American Physical Society. The reflectance of graphene is investigated in the framework of the Dirac model with account of its realistic properties, such as nonzero chemical potential and band gap, at any temperature. ...

Impact of magnetic nanoparticles on the Casimir pressure in three-layer systems

Klimchitskaya G.; Mostepanenko V.; Nepomnyashchaya E.; Velichko E. (2019)

© 2019 American Physical Society. The Casimir pressure is investigated in three-layer systems where the intervening stratum possesses magnetic properties. This subject is gaining in importance in connection with ferrofluids ...

Low-temperature behavior of the Casimir free energy and entropy of metallic films

Klimchitskaya G.; Mostepanenko V. (2017)

© 2017 American Physical Society.We derive an analytic behavior of the Casimir free energy, entropy, and pressure of metallic films in a vacuum at low temperature. It is shown that this behavior differs significantly ...

Low-temperature behavior of the Casimir-Polder free energy and entropy for an atom interacting with graphene

Klimchitskaya G.; Mostepanenko V. (2018)

© 2018 American Physical Society. The analytic expressions for the free energy and entropy of the Casimir-Polder interaction between a polarizable and magnetizable atom and a graphene sheet are found in the limiting case ...

Maximum reflectance and transmittance of films coated with gapped graphene in the context of the Dirac model

Klimchitskaya G.; Mostepanenko V. (2018)

© 2018 American Physical Society. The analytic expressions for the maximum and minimum reflectances of optical films coated with gapped graphene are derived in the application region of the Dirac model taking into account ...

Nernst heat theorem for the thermal Casimir interaction between two graphene sheets

Bezerra V.; Klimchitskaya G.; Mostepanenko V.; Romero C. (2016)

© 2016 American Physical Society.We find analytic asymptotic expressions at low temperature for the Casimir free energy, entropy, and pressure of two parallel graphene sheets in the framework of the Lifshitz theory. The ...

Optical properties of dielectric plates coated with gapped graphene

Klimchitskaya G.; Mostepanenko V. (2017)

© 2017 American Physical Society.The optical properties of dielectric plates coated with gapped graphene are investigated on the basis of first principles of quantum electrodynamics. The reflection coefficients and ...

Precision measurements of the gradient of the Casimir force between ultraclean metallic surfaces at larger separations

Liu M.; Xu J.; Klimchitskaya G.; Mostepanenko V.; Mohideen U. (2019)

© 2019 American Physical Society. We report precision measurements of the Casimir interaction at larger separation distances between the Au-coated surfaces of a sphere and a plate in ultrahigh vacuum using a much softer ...

Prospects for searching thermal effects, non-Newtonian gravity and axion-like particles: Cannex test of the quantum vacuum

Klimchitskaya G.; Mostepanenko V.; Sedmik R.; Abele H. (2019)

© 2019 by the authors. We consider the CANNEX (Casimir And Non-Newtonian force EXperiment) test of the quantum vacuum intended for measuring the gradient of the Casimir pressure between two flat parallel plates at large ...

Quantum electrodynamic approach to the conductivity of gapped graphene

Klimchitskaya G.; Mostepanenko V. (2016)

©2016 American Physical Society.The electrical conductivity of graphene with a nonzero mass-gap parameter is investigated starting from the first principles of quantum electrodynamics in (2+1)-dimensional space time at any ...

Recent measurements of the Casimir force: Comparison between experiment and theory

Klimchitskaya G.; Mostepanenko V. (2020)

© 2020 World Scientific Publishing Company. We consider experiments on measuring the Casimir interaction which have been performed in the last four years. The emphasis is made on measuring differences in the Casimir pressures ...

Browsing by Author "Klimchitskaya G."

Browsing by Author "Klimchitskaya G."

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